Enter an atomic species: Ag Enter a cubic lattice type: fcc Enter a model name: EAM_Dynamo_AcklandTichyVitek_1987_Ag__MO_212700056563_005 Enter a lattice constant (m): 4.086000084877014e-10 Writing phonon.eq.pckl Writing phonon.0x-.pckl Writing phonon.0x+.pckl Writing phonon.0y-.pckl Writing phonon.0y+.pckl Writing phonon.0z-.pckl Writing phonon.0z+.pckl WARNING, 3 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 7.010e-09*i) WARNING, 3 imaginary frequencies at q = ( 0.00, 0.00, 0.00) ; (omega_q = 7.010e-09*i)